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55547105 = 519756393
BaseRepresentation
bin1101001111100…
…1010011100001
310212112002022012
43103321103201
5103210001410
65302322305
71243066625
oct323712341
9125462265
1055547105
112939a3a9
1216729395
13b67b213
14753d185
154d23605
hex34f94e1

55547105 has 8 divisors (see below), whose sum is σ = 66996072. Its totient is φ = 44211328.

The previous prime is 55547083. The next prime is 55547111. The reversal of 55547105 is 50174555.

It can be written as a sum of positive squares in 4 ways, for example, as 16096144 + 39450961 = 4012^2 + 6281^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55547105 - 218 = 55284961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27212 + ... + 29181.

It is an arithmetic number, because the mean of its divisors is an integer number (8374509).

Almost surely, 255547105 is an apocalyptic number.

It is an amenable number.

55547105 is a deficient number, since it is larger than the sum of its proper divisors (11448967).

55547105 is a wasteful number, since it uses less digits than its factorization.

55547105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56595.

The product of its (nonzero) digits is 17500, while the sum is 32.

The square root of 55547105 is about 7452.9930229405. The cubic root of 55547105 is about 381.5520662608.

The spelling of 55547105 in words is "fifty-five million, five hundred forty-seven thousand, one hundred five".

Divisors: 1 5 197 985 56393 281965 11109421 55547105